send away

1.

Also,
send off.

2.

Dispatch someone or something, as in We send the children away to camp every summer, or I sent off that letter last week. The first term dates from the first half of the 1500s, the variant from the late 1700s.

3.

Order an item, as in I sent away for those gloves last month but they haven't arrived yet. Also see send for, def. 2.